From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>
Cc: Namjae Jeon <linkinjeon@kernel.org>,
Sungjong Seo <sj1557.seo@samsung.com>,
"Theodore Ts'o" <tytso@mit.edu>,
Andreas Dilger <adilger.kernel@dilger.ca>,
Konstantin Komarov <almaz.alexandrovich@paragon-software.com>,
"Darrick J. Wong" <djwong@kernel.org>,
linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
ntfs3@lists.linux.dev, linux-xfs@vger.kernel.org
Subject: [PATCH 09/13] exfat: don't RCU-free the sbi
Date: Wed, 9 Aug 2023 15:05:41 -0700 [thread overview]
Message-ID: <20230809220545.1308228-10-hch@lst.de> (raw)
In-Reply-To: <20230809220545.1308228-1-hch@lst.de>
There are no RCU critical sections for accessing any information in the
sbi, so drop the call_rcu indirection for freeing the sbi.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/exfat/exfat_fs.h | 2 --
fs/exfat/super.c | 15 ++++-----------
2 files changed, 4 insertions(+), 13 deletions(-)
diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h
index 729ada9e26e82e..f55498e5c23d46 100644
--- a/fs/exfat/exfat_fs.h
+++ b/fs/exfat/exfat_fs.h
@@ -273,8 +273,6 @@ struct exfat_sb_info {
spinlock_t inode_hash_lock;
struct hlist_head inode_hashtable[EXFAT_HASH_SIZE];
-
- struct rcu_head rcu;
};
#define EXFAT_CACHE_VALID 0
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index 8c32460e031e80..3c6aec96d0dc85 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -31,16 +31,6 @@ static void exfat_free_iocharset(struct exfat_sb_info *sbi)
kfree(sbi->options.iocharset);
}
-static void exfat_delayed_free(struct rcu_head *p)
-{
- struct exfat_sb_info *sbi = container_of(p, struct exfat_sb_info, rcu);
-
- unload_nls(sbi->nls_io);
- exfat_free_iocharset(sbi);
- exfat_free_upcase_table(sbi);
- kfree(sbi);
-}
-
static void exfat_put_super(struct super_block *sb)
{
struct exfat_sb_info *sbi = EXFAT_SB(sb);
@@ -50,7 +40,10 @@ static void exfat_put_super(struct super_block *sb)
brelse(sbi->boot_bh);
mutex_unlock(&sbi->s_lock);
- call_rcu(&sbi->rcu, exfat_delayed_free);
+ unload_nls(sbi->nls_io);
+ exfat_free_iocharset(sbi);
+ exfat_free_upcase_table(sbi);
+ kfree(sbi);
}
static int exfat_sync_fs(struct super_block *sb, int wait)
--
2.39.2
next prev parent reply other threads:[~2023-08-09 22:06 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-09 22:05 s_fs_info and ->kill_sb revisited v2 Christoph Hellwig
2023-08-09 22:05 ` [PATCH 01/13] xfs: reformat the xfs_fs_free prototype Christoph Hellwig
2023-08-10 8:53 ` Christian Brauner
2023-08-10 15:51 ` Christoph Hellwig
2023-08-11 7:24 ` Christian Brauner
2023-08-09 22:05 ` [PATCH 02/13] xfs: remove a superfluous s_fs_info NULL check in xfs_fs_put_super Christoph Hellwig
2023-08-09 22:05 ` [PATCH 03/13] xfs: free the xfs_mount in ->kill_sb Christoph Hellwig
2023-08-09 22:05 ` [PATCH 04/13] xfs: remove xfs_blkdev_put Christoph Hellwig
2023-08-09 22:05 ` [PATCH 05/13] xfs: close the RT and log block devices in xfs_free_buftarg Christoph Hellwig
2023-08-09 22:05 ` [PATCH 06/13] xfs: close the external block devices in xfs_mount_free Christoph Hellwig
2023-08-09 22:34 ` Darrick J. Wong
2023-08-09 22:05 ` [PATCH 07/13] xfs: document the invalidate_bdev call in invalidate_bdev Christoph Hellwig
2023-08-09 22:39 ` Darrick J. Wong
2023-08-10 8:20 ` Christian Brauner
2023-08-10 15:53 ` Christoph Hellwig
2023-08-10 15:22 ` Matthew Wilcox
2023-08-10 15:52 ` Christoph Hellwig
2023-08-10 16:00 ` Darrick J. Wong
2023-08-10 15:57 ` Darrick J. Wong
2023-08-09 22:05 ` [PATCH 08/13] ext4: close the external journal device in ->kill_sb Christoph Hellwig
2023-08-09 22:05 ` Christoph Hellwig [this message]
2023-08-10 13:01 ` [PATCH 09/13] exfat: don't RCU-free the sbi Namjae Jeon
2023-08-09 22:05 ` [PATCH 10/13] exfat: free the sbi and iocharset in ->kill_sb Christoph Hellwig
2023-08-10 13:02 ` Namjae Jeon
2023-08-09 22:05 ` [PATCH 11/13] ntfs3: rename put_ntfs ntfs3_free_sbi Christoph Hellwig
2023-08-09 22:05 ` [PATCH 12/13] ntfs3: don't call sync_blockdev in ntfs_put_super Christoph Hellwig
2023-08-09 22:05 ` [PATCH 13/13] ntfs3: free the sbi in ->kill_sb Christoph Hellwig
2023-09-07 13:05 ` Guenter Roeck
2023-09-07 13:54 ` Christian Brauner
2023-09-07 15:23 ` Guenter Roeck
2023-09-07 15:49 ` Christian Brauner
-- strict thread matches above, loose matches on Subject: below --
2023-08-08 16:15 s_fs_info and ->kill_sb revisited Christoph Hellwig
2023-08-08 16:15 ` [PATCH 09/13] exfat: don't RCU-free the sbi Christoph Hellwig
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